Setting up group email

You have complete control over who can send an email to your group.
The options are:

have it open to anyone, whether they belong to your group or not

restricted to members of the group (default)

restricted to group administrators only

To prevent outsiders from spamming the group, we recommend restricting it at least the second option. You have the option of Muzodo forwarding unauthorized emails to a member in the group for moderation.
If the email is ok, that group member can resend it.

If you need to allow someone to email the group that is not in the group, you can add them to the white list.